
Sikaflex 221 Black - 310 ml
Key Features
Product Name: Sikaflex 221 Black
Size: 310 ml
Type: Polyurethane sealant and adhesive
Key Specifications:
Color: Black
Consistency: Paste-like, smooth
Curing Mechanism: Cures through moisture exposure to form a flexible, durable bond
Tensile Strength: 3 MPa (approx.)
Elongation at Break: 300%
Shore A Hardness: 50 ± 5
Working Time: Approximately 30 minutes (depends on temperature and humidity)
Full Cure: 24 hours (depending on thickness and environmental conditions)
Temperature Resistance: -40°C to +80°C (short-term up to +100°C)
Adhesion: Excellent adhesion to a wide range of materials, including metals, plastics, wood, ceramic, and painted surfaces
Weather Resistance: Highly resistant to weathering, UV, ozone, and water
Application Temperature Range: +5°C to +40°C
Storage: Store in a cool, dry place, and avoid direct sunlight. Shelf life of 12 months in unopened packaging
Features:
Multi-purpose: Suitable for sealing and bonding applications in construction, automotive, marine, and other industries
Elastic and Durable: Forms a tough, flexible bond that can withstand vibrations and dynamic loads
Paintable: Once cured, it can be painted over with most paints
Non-corrosive: Safe to use on metal and other sensitive materials
Easy to Apply: Comes in a 310 ml cartridge for convenient application with a caulking gun
Applications:
Bonding and sealing in automotive and transport industries
Sealing joints in construction (such as windows, doors, and facades)
Marine applications, such as sealing deck joints and hull bonding
General sealing and bonding in home repairs and maintenance